LightwareLightWare GRF-250 (250m) Laser Rangefinder

This product guide is a comprehensive companion to your LightWare GRF-250 laser rangefinder, a groundbreaking 250-meter sensor renowned as the world’s smallest and lightest in its category. Meticulously engineered to seamlessly integrate into electro-optical/infrared (EO/IR) gimbals, it sets new standards in distance sensing for precise camera focus and relative object positioning.

By incorporating the GRF-250 into your EO/IR gimbal, you gain access to critical depth perception data, allowing for optimal long-range camera focus and ensuring a crystal-clear image. Additionally, it unlocks precise localization of observed objects, even enabling the triangulation of the object’s GPS coordinates.

GRF-250 is a compact, ultralight, and energy-efficient sensor that utilizes the time-of-flight principle to measure distance by emitting a rapid succession of laser pulses that are reflected by target objects and received back and immediately processed. It uses 905-nanometer laser technology, ensuring optimal performance at an affordable price, while meeting class 1M eye safety standards. The GRF-250’s accuracy is not affected by the color or texture of the target or object surface or the laser beam’s angle of incidence. It is virtually immune to background light, wind, and noise, rendering it an ideal sensor for outdoor use.

Configurable features and versatile hardware make the GRF-250 easy to integrate. With a 250- meter laser rangefinder, the GRF-250 extends your sensing horizon, delivering reliable performance over long distances. Measuring a mere 32 mm x 31 mm x 20 mm, this sensor is meticulously designed for seamless integration into space-constrained gimbals, ensuring versatility without compromise. Weighing just 10.65 grams, the GRF-250 sensor stands as the epitome of ultralight design, making it the ideal sensor for gimbals used in demanding applications with strict weight constraints.

Specification:

• Wavelength - 905nm
• Range - 10 to 250 m / 32.8 to 820 ft (at 50 Hz update rate, 40% albedo, 10 km visibility, 1.4 m x 1.4 m target size)
• Update rate - 1 to 50 readings per second 
• Accuracy - ± 50 cm / ± 19.6 in (1 sigma)
• Mechanical boresight - ± 1.5° with respect to mechanical interface
• Weight - 10.65 g / 0.376 oz
• Size - 32 mm x 31 mm x 20 mm / 1.3 in x 1.2 in x 0.8 in
• Interfaces - USB, Serial UART and I2C (3.3 V TTL, 5 V tolerant)
• Operating Temperature - -20 to 60 °C / -4 to 140 °F

Package contains:

• 1x GRF-250 Laser Rangefinder 
• 1x Communication Cable